Sweet Spot Builder

3 × 10 min @ 88–92% FTP

Three ten-minute efforts that creep up through the sweet spot: the most time-efficient way to raise your FTP.

Structure

1. 10:00 @ 50→75%
2. 3 × (10:00 @ 88→92% + 3:00 easy @ 55%)
3. 6:00 easy @ 60%
4. 5:00 @ 60→45%

Percentages of your FTP. Intensity can be moved ±5 % at a time while you ride.